this post was submitted on 23 Jun 2024
276 points (94.5% liked)

Technology

59534 readers
3223 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
L3s@lemmy.world
L3s@fry.gs
L4s@fry.gs
L4s@lemmy.world
enu@lemmy.world
276
Why we don't have 128-bit CPUs (www.xda-developers.com)
submitted 5 months ago by jwr1@kbin.earth to c/technology@lemmy.world
123 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] JATtho@lemmy.world 1 points 4 months ago

Even the newest "64-bit" cpus are really just 48-bit (or 36-bit on low end) or if bleeding edge 56-bit physical adressing processors. This is the maximum amount of virtual memory a process can have access to. You could memory map all your hard disks an still have room to map more physical memory to VMA.